Nurhasanah, C., A. Idiana, P. Santi, and Y. Yushida. “Comparative Analysis of Beet Juice and Red Guava Juice Against Erythrocyte and Hematocrit Levels in Post-Partum Women”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. B, Aug. 2021, pp. 821-5, doi:10.3889/oamjms.2021.6259.